Data-model synthesis of grassland carbon metabolism. Quantifying direct, indirect &amp; interactive effects of warming &amp; elevated CO2

Pendall, Elise; Ogle, Kiona; Parton, William

doi:10.2172/1239688

Data-model synthesis of grassland carbon metabolism. Quantifying direct, indirect & interactive effects of warming & elevated CO₂

Technical Report · Mon Feb 29 04:00:00 EST 2016

DOI:https://doi.org/10.2172/1239688· OSTI ID:1239688

Pendall, Elise ^[1]; Ogle, Kiona ^[2]; Parton, William ^[2]

Univ. of Wyoming, Laramie, WY (United States); Western Sydney University
Univ. of Wyoming, Laramie, WY (United States)

This research project improved understanding of how climate change (elevated atmospheric CO₂, warming and altered precipitation) can affect grassland ecosystem productivity and nutrient availability. Our advanced experimental and modeling methods allowed us to test 21 specific hypotheses. We found that ecosystem changes over years of exposure to climate change can shift the plant communities and potentially make them more resilient to future climate changes. These changes in plant communities may be related to increased growth of belowground roots and enhanced nutrient uptake by some species. We also found that climate change can increase the spread of invasive and noxious weeds. These findings are important for land managers to make adaptive planning decisions for domestic livestock production in response to climate variability in semi-arid grasslands.

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Research Organization:: University of Wyoming, Laramie, WY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)

Contributing Organization:: Arizona State Univ., Tempe, AZ (United States); Colorado State Univ., Fort Collins, CO (United States)

DOE Contract Number:: SC0006973

OSTI ID:: 1239688

Report Number(s):: Final Report: DOE-Wyoming--0006373; 03077666293

Country of Publication:: United States

Language:: English

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Data-model synthesis of grassland carbon metabolism. Quantifying direct, indirect & interactive effects of warming & elevated CO2

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Data-model synthesis of grassland carbon metabolism. Quantifying direct, indirect & interactive effects of warming & elevated CO₂